Anxiety is back!

Hi guys, I was diagnosed with anxiety many years ago, last year it was the worse it ever got to, am on meds for that, have 2 adult sons with autism, so life can be tough, but I was fine until last week, my asthma is cranky at the moment, so my inhalers have been upped and been put on a Spiriva Respimat inhaler for 6 weeks, since taking this my anxiety is back with a vengeance, just wondered if its a coincidence or you can get anxiety side effects from inhalers?